Animal Planet Heroes/YMMV

Bile Fascination: Most of the compilation episodes of the "most shocking" cases, since they're all the very worse cases of neglect and abuse, are possibly geared a bit towards this.
Heartwarming Moments - Bound to happen in a show with cute baby animals.
- Moreso since the show is about RESCUING aforementioned animals.
- There's one episode of Houston where an anonymous person sends threatening letters about poisoning a neighbour's barking dogs, one of which reads:

"IT'S ONLY A MATTER OF TIME!"

Nausea Fuel - Between the wounds on the rescued animals to the state of some of their environments, especially those in hoarding situations, you really don't want to watch this while eating.
- One of the worst was probably (spoilered for massive Squick) a cocker spaniel who had been kept in his own filth so long without grooming that his fur was matted to the point that it made up more than half his mass and was puling on his skin, and as they were shaving off the massive amounts of fur they found a maggot living inside one of the mats and even the ASPCA officers said they'd never seen anything like it. It's enough to make one want to take a shower forever.
- If you think that's bad, one time three dogs were found in a tiny yard, and one of them had maggots swarming all over its wounds (inflicted by one of the other dogs). Then one of the vets slices open one of the dog's legs while cleaning the wounds to get a better look of the situation and finds more inside. The dog was so literally half-dead that the maggots were eating it alive.
- Dogs that had been living in their (too-small) crates for so long, that the fecal matter had solidified at the bottom like a sort of thick flooring. One of the officers tried to put ruler though the feces and couldn't push hard enough. She had to drill down into it to get an accurate measurement--there was more than an inch of solid fecal matter in the bottom of every cage.
- A puppy in an abandoned yard was pick up. As the rescuer held it out for the camera with it's belly exposed, all of the fat fleas and other bugs raced for cover in it's fur. The puppy eventually succumbed to disease and blood loss.
Tear Jerker - If you love animals a lot, the cruelty cases can often be quite heartbreaking.
- Even if you don't love animals in general, numerous cases can be this.
- One case in particular stands out: the workers rescue a near-dead horse from a neglectful owner. The man tries to save the horse as fast as he could when they get to the shelter, but it DIES in his arms. Heartbreaking indeed...
The Woobie: Essentially most animals, especially the ones that die. And Pit Bulls are a Woobie breed, due to dogfighting and they tend to be owned by people who like to think they're tough by abusing them.
Ugly Cute - Well, you can't expect neglected and abused animals to look perfect after what they've gone through. The example that sticks in this tropers head is Disco, a kitten who turned out to have a rare blood circulation disorder that caused it's ears and tail to die off (once again, don't watch this show while eating). But it may have just made it more adorable.
- Dogs who have the skin condition mange tend to lose their fur and have nasty scars from scratching, but they just look so poorly and miserable that you want to hug them... even if it wouldn't be a good idea.